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Finding the Fourth Proportional to 347,247.64, 479,237.46 and 211,291.48

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Solution

The fourth proportional to 347,247.64, 479,237.46 and 211,291.48 is: 291,603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,247.64 : 479,237.46 = 211,291.48 : x
  2. Step 2: Convert to fraction form
    347,247.64/479,237.46 = 211,291.48/x
  3. Step 3: Cross multiply
    347,247.64x = 479,237.46 × 211,291.48
  4. Step 4: Simplify right side
    347,247.64x = 101,258,792,194.84
  5. Step 5: Solve for x
    x = 101,258,792,194.84/347,247.64
  6. Step 6: Final answer
    x = 291,603.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.